File Extension Database

Open 123D File

File extensions are essential for defining a file's purpose, letting both the user and the operating system know the type of content within. One such file extension is 123D, which is associated with Autodesk 123D applications - a suite of impressive 3D design tools. However, there are multiple file formats and ways to open and use files with 123D extensions. In this article, we will discuss several methods and applications to help you access and work with 123D files.

Autodesk 123D Suite Applications

Autodesk 123D is a suite of powerful computer-aided design (CAD) applications, targeted towards hobbyists, students, and professionals looking to create 3D models. These applications include:

123D Design for creating 3D models and prototypes
123D Catch for transforming photos into realistic 3D models
123D Make for turning 3D models into physical objects by cutting patterns
123D Sculpt+ for intuitive sculpting of 3D models on touchscreen devices

Users can now generally create 123D files using these Autodesk applications and save them in different formats, such as .123dx, .stp, .obj, .dwg, and more. Therefore, varying according to the specific software used, the 123D file may require a different approach when attempting to open and use the file.

Opening and Editing .123DX Files

The primary file extension associated with Autodesk 123D Design is .123dx. This is the default file format that saves the 3D models, sketches, and part assemblies. To open and edit .123dx files, you will need access to 123D Design, which can be downloaded from the official 123D Design website.

Alternatively, you can use Autodesk Fusion 360, a cloud-based 3D modeling software that has gradually taken over 123D Design since its discontinuation in 2016. Fusion 360 supports importing .123dx files directly, allowing you to edit, design, or export to other CAD formats seamlessly. To access Autodesk Fusion 360, visit their official webpage.

Opening 123D .STP, .OBJ, and .DWG Files

Other commonly used file formats within the Autodesk 123D suite include .stp, .obj, and .dwg. The 123D applications typically offer the option to export your design in these formats to enable compatibility with other CAD software.

To open .stp and .obj files, you can use Autodesk Fusion 360 or other popular CAD software like FreeCAD, Blender, or Solid Edge. For .dwg files, Autodesk provides dedicated DWG viewing and editing software called DWG TrueView and AutoCAD respectively.

123D File Conversion

In some cases, you may need to convert your 123D files to different formats to ensure compatibility with other professional CAD software, like SolidWorks or NX. To do this, you can use the built-in file export feature in Autodesk 123D applications, or rely on third-party conversion tools like AnyConv or ConvertCADFiles.

123D File Important Information

Keep in mind that, while there are multiple ways to open and use 123D files, Autodesk 123D applications have been discontinued since March 31, 2017. Autodesk now mainly uses Fusion 360 as its primary cloud-based design application. However, you may still find previous 123D applications using their archived links.

Working with 123D files may require a variety of software depending on the specific format of the file. Make sure to check the file extension and use the appropriate software for each case. Finally, remember to always backup your CAD files in multiple formats to ensure compatibility across different design platforms and future-proof your work.

How Can I Open 123D File on Windows

We researched and learned that the best way to open 123D file is to find a 123D file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a 123D file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open 123D file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as 123D file opener then try to search online for "123D viewer", "application to open 123D file" or "open 123D file" queries in the search engine you like.
Install the application you found and check if it can open 123D file

How Can I Open 123D File on Mac OS

We recommend to find a 123D file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a 123D file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with 123D file.
If you know the Mac OS application which can work as 123D file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open 123D file in it.
If you don't know the application which can open 123D file then try to search for "123D viewer", "application to open 123D file" or "read 123D file" queries in the online search engine you like.
Install the application you found and check if it can read 123D file

How Can I Open 123D File on Android

If you downloaded a 123D file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded 123D file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "123D".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "123D viewer", "123D file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open 123D File on iPhone or iPad

To open 123D File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the 123D file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "123D". This way you can find apps which can open 123D files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "123D viewer" or "123D file" online in your favorite search engine.

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